You could do that but there are also build in tools that can help you.



If you click the "eye" to the left, it opens a popup window where you can activate and deactivate different forum sections


If you click on the little tick next to the "eye" you can mark all the forum threads as "read".

i don't find this function in my phone!?

Ah well I have no idea how the forums works on the phone, because I have never accessed this site on my phone